Patent classifications
C23C2/04
High-strength galvanized steel sheet and method for producing the same
Provided are a high-strength galvanized steel sheet having excellent delayed fracture resistance by reducing the diffusible hydrogen content in the steel and a method for producing the same. The high-strength galvanized steel sheet includes a steel sheet having a prescribed composition and a microstructure including martensite and tempered martensite, the total area fraction of the martensite and the tempered martensite being 30% or more, and a galvanizing layer formed on the surface of the steel sheet. The diffusible hydrogen content in the high-strength galvanized steel sheet is 0.50 wt. ppm or less. The half-width of the hydrogen release peak of the high-strength galvanized steel sheet is 70° C. or less. The diffusible hydrogen content and the half-width of the hydrogen release peak are determined by a prescribed analysis method.
DEVICE AND METHOD FOR MEASURING OXIDE FILM THICKNESS
An oxide layer thickness measurement device according to the present invention stores, for each of layer thickness measurement sub-ranges constituting a layer thickness measurement range, layer thickness conversion information representing a correlation between a layer thickness and an emitting light luminance where a ratio of a change in the emitting light luminance to a change in the layer thickness in the layer thickness measurement sub-range falls within a set extent. The device includes a plurality of emitting light luminance measurement parts for measuring emitting light luminances of a surface of a steel sheet at respective measurement wavelengths different from each other. Calculated in connection with each of the emitting light luminances of the surface of the steel sheet measured by the emitting light luminance measurement parts are the layer thickness corresponding to the measured emitting light luminance and a ratio at the layer thickness by using the layer thickness conversion information corresponding to each of the emitting light luminance measurement parts. The calculated layer thickness is extracted as a candidate value for an actual thickness layer when the calculated ratio is within the set extent assigned for the layer thickness conversion information.
GALVANIZED STEEL SHEET HAVING EXCELLENT PLATING ADHESION AND CORROSION RESISTANCE, AND MANUFACTURING METHOD THEREFOR
Provided is a galvanized steel sheet having excellent plating adhesion, having a plated layer with improved friction characteristics by means of a predetermined level of Fe elution, and having excellent corrosion resistance; and a manufacturing method therefor.
Multicolor Fixture Finishes
A plumbing fixture having a multi-color appearance includes a first portion including a first finish having a first appearance and a second portion including a second portion having a second appearance that differs from the first appearance. The plumbing fixture further includes a transition region between the first portion and the second portion, wherein the appearance of the third region is graduated from the first appearance to the second appearance between a first end of the transition region adjacent the first portion and a second end of the transition region adjacent the second portion. The plumbing fixture has an ombré appearance as a result of the graduated transition between the first portion and the second portion.
Multicolor Fixture Finishes
A plumbing fixture having a multi-color appearance includes a first portion including a first finish having a first appearance and a second portion including a second portion having a second appearance that differs from the first appearance. The plumbing fixture further includes a transition region between the first portion and the second portion, wherein the appearance of the third region is graduated from the first appearance to the second appearance between a first end of the transition region adjacent the first portion and a second end of the transition region adjacent the second portion. The plumbing fixture has an ombré appearance as a result of the graduated transition between the first portion and the second portion.
Method and apparatus for applying a corrosion-resistant coating to fasteners
A method of applying a corrosion-resistant coating to a fastener that includes preheating an area of the fastener to be coated to elevate a temperature of the area and spraying the preheated area of the fastener with a molten or semi-molten metal. In one embodiment, a corrosion-resistant coating applicator includes a support structure, a rotatable slotted fastener conveyer supported by the support structure, a feeder configured to feed fasteners to the rotatable slotted fastener conveyer, a fastener aligner configured to make head portions of the fasteners aligned with each other, a heater configured to heat head portions of the fasteners as the fasteners are being conveyed by the slotted fastener conveyer, and a sprayer configured to apply a corrosion-resistant coating to the heated head portions of the fasteners being conveyed by the slotted fastener conveyer. The present disclosure also provides corrosion-resistant coated fasteners made using the coating methods and/or coating apparatus.
Method and apparatus for applying a corrosion-resistant coating to fasteners
A method of applying a corrosion-resistant coating to a fastener that includes preheating an area of the fastener to be coated to elevate a temperature of the area and spraying the preheated area of the fastener with a molten or semi-molten metal. In one embodiment, a corrosion-resistant coating applicator includes a support structure, a rotatable slotted fastener conveyer supported by the support structure, a feeder configured to feed fasteners to the rotatable slotted fastener conveyer, a fastener aligner configured to make head portions of the fasteners aligned with each other, a heater configured to heat head portions of the fasteners as the fasteners are being conveyed by the slotted fastener conveyer, and a sprayer configured to apply a corrosion-resistant coating to the heated head portions of the fasteners being conveyed by the slotted fastener conveyer. The present disclosure also provides corrosion-resistant coated fasteners made using the coating methods and/or coating apparatus.
HIGHLY CORROSION-RESISTANT PLATED STEEL SHEET HAVING EXCELLENT PLATING ADHESION AND RESISTANCE TO LIQUID METAL EMBRITTLEMENT
Provided is a highly corrosion-resistant plated steel sheet having plating adhesion and resistance to liquid metal embrittlement. A highly corrosion-resistant plated steel sheet comprises a base steel sheet and a plated layer, which sequentially comprises an Fe—Al alloy layer and an MgZn.sub.2 layer from an interface with the base steel sheet.
DIRECT METHOD OF SYNTHESIS OF ZNO NWS/SWCNTS AND ZNO NWS/GRAPHENE HETEROSTRUCTURES
The present disclosure provides methods of preparing heterostructures of a carbon-based structure and a metal oxide structure. Also provided are heterostructures formed via the methods described herein and devices comprising such heterostructures.
DIRECT METHOD OF SYNTHESIS OF ZNO NWS/SWCNTS AND ZNO NWS/GRAPHENE HETEROSTRUCTURES
The present disclosure provides methods of preparing heterostructures of a carbon-based structure and a metal oxide structure. Also provided are heterostructures formed via the methods described herein and devices comprising such heterostructures.